Introduction to basic physics of motion. Introduces the concept of variable velocity/acceleration.
Course
Physics
Projectile motion, mechanics and electricity and magnetism. Solid understanding of algebra and a basic understanding of trigonometry necessary.
66 Lectures
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More on how velocity, distance, acceleration and time relate to each other.
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Using the basic equations of distance and velocity to solve motion problems.
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Using the equations of motion to figure out things about falling objects.
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A derivation of a new motion equation.
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An example of solving for the final velocity when you know the change in distance, time, initial velocity, and acceleration.
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Solving for time when you are given the change in distance, acceleration, and initial velocity.
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How fast was the ball that you threw upwards?
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More on the ball throwing game.
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How high did the ball go?
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A little leftover from part 7.
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Another example of projectile motion.
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Some more examples with projectile motion.
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Using vectors to solve 2 dimensional projectile motion problems.
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More on 2 dimensional projectile motion.
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Completing our first example from parts 1 and 2.
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Another example of a 2-dimensional projectile motion problem.
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The second part of the last projectile motion problem.
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Optimal Angle for Projectile Part 1.
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Optimal angle for a projectile part 2 - Hangtime.
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Horizontal distance as a function of angle (and speed).
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Optimal Angle for Projectile Part 4.
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Introduction to newton's first law of motion. Inertial frames of reference.
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An introduction to Newton's Second Law of Motion.
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Intuition behind Newton's Third Law of Motion.
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Examples of exercises using Newton's laws.
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A couple of more examples involving Newton's Laws.
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A problem involving a braking train.
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An introduction to tension. Solving for the tension(s) in a set of wires when a weight is hanging from them.
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A slightly more difficult tension problem.
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The second part to the complicated problem. We figure out the tension in the wire connecting the two masses. Then we figure our how much we need to accelerate a pie for it to safely reach a man's face.
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What happens when we pull on a pulley and the pulley is pulling on other things?
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Second part of what happens when we pull on a pulley.
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What momentum is. A simple problem involving momentum.
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A simple conservation of momentum problem involving an ice skater and a ball.
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An example of conservation of momentum in two dimensions.
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We finish the 2-dimensional momentum problem.
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Introduction to work and energy.
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More on work. Introduction to Kinetic and Potential Energies.
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Using the law of conservation of energy to see how potential energy is converted into kinetic energy.
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A conservation of energy problem where all of the energy is not conserved.
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Introduction to simple machines, mechanical advantage and moments.
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More on mechanical advantage, levers and moments.
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Introduction to pulleys and wedges.
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Introduction to the center of mass.
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An introduction to torque.
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Introduction to moments.
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2 more moment problems.
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Expressing a vector as the scaled sum of unit vectors.
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More on unit vector notation. Showing that adding the x and y components of two vectors is equivalent to adding the vectors visually using the head-to-tail method.
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Determining the position vector as a function of time.
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Let's see if the ball can clear the wall.
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Solving the second part to the projectile motion problem (with wind gust) using ordered set vector notation.
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Intuition behind what it takes to make something travel in a circle.
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More intuition on centripetal acceleration. A simple orbit problem.
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How fast does a car need to go to complete a loop-d-loop.
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Visual proof that centripetal acceleration = v^2/r.
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Using calculus and vectors to show that centripetal acceleration = v^2/r.
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Angular velocity or how fast something is spinning.
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Angular momentum is constant when there is no net torque.
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A little bit on gravity.
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A little bit more on gravity.
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Introduction to Hooke's Law.
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Work needed to compress a spring is the same thing as the potential energy stored in the compressed spring.
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A spring, a frozen loop-d-loop and more! (See if you can find the mistake I made and get the right answer!).
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Intuition behind the motion of a mass on a spring (some calculus near the end).